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Broadband flexible comb-shaped monopole antenna

Broadband flexible comb-shaped monopole antenna

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  • Author(s): J. Jung 1 ; H. Lee 2 ; Y. Lim 1
    • View affiliations
    • Affiliations: 1: Department of Electronics Engineering, Chonnam National University, Gwang-ju, Republic of Korea
      2: Department of Electrical and Electronics Engineering, Dongkang College, Gwang-ju, Republic of Korea
  • Source: Volume 3, Issue 2, March 2009, p. 325 – 332
    DOI:  10.1049/iet-map:20070363 , Print ISSN 1751-8725, Online ISSN 1751-8733
© The Institution of Engineering and Technology
Published

A broadband comb-shaped monopole antenna is proposed. The antenna has dimensions of 19 mm×12 mm. The measured results show good agreement with the numerical prediction, and broadband operation with 10 dB impedance bandwidth of 44.75% (1.7–2.68 GHz). The antenna is built on one side of a flexible-printed circuit board (PCB) dielectric substrate. Folded and rolled antenna structures, which are transformed by the proposed planar antenna structure, are presented. Each antenna has a broadband impedance bandwidth that covers the PCS, UMTS, WiBro, WLAN and SDMB bands. Also, omni-directional radiation patterns over the operating bands have been obtained. The proposed antennas are suitable for mobile communication applications requiring a small antenna.

Inspec keywords: printed circuits; broadband antennas; antenna radiation patterns; planar antennas; monopole antennas

Other keywords: monopole antenna; flexible comb-shaped antenna; planar antenna structure; omni-directional radiation patterns; flexible-printed circuit board dielectric substrate; mobile communication applications; bandwidth 1.7 GHz to 2.68 GHz; broadband antenna

Subjects: Single antennas; Printed circuits

References

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    3. 3)
      • R.W.P. King . (1956) Theory of linear antennas.
    4. 4)
    5. 5)
      • C.A. Balanis . Antenna theory analysis and design.
    6. 6)
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